<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>增加年龄</title>
</head>

<body>
    <script>
        let age = prompt('你现在多少岁了？')
        let ago = 5 + parseInt(age)
        console.log(`"据我估计，五年后，你可能"${ago}"岁了"`);
    </script>
</body>

</html>